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From: Marko Rauhamaa <marko@pacujo.net>
Newsgroups: comp.lang.python
Subject: Re: Python vs C++
Date: Sat, 23 Aug 2014 10:27:11 +0300
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Chris Angelico <rosuav@gmail.com>:

> I'm just saying that callbacks are inherently restrictive in a
> language without first-class functions.

You don't have to go that far to have great callback support. C# (and
Delphi) show a great model that I wish C++ had adopted from the
beginning. C++ could have declared that a function pointer contains the
function pointer plus the (optional) this pointer. That would have dealt
with the whole (important) issue.

> So I'm not sure why you have further issue with C++; C's way of doing
> callbacks works fine in C++, and there's not going to be anything
> better.

Well, C++11 brings in the lambda (<URL:
http://www.cprogramming.com/c++11/c++11-lambda-closures.html>):

   One of the biggest beneficiaries of lambda functions are, no doubt,
   power users of the standard template library algorithms package.
   Previously, using algorithms like for_each was an exercise in
   contortions.


Using void pointers in C++ is like sacrificing to the idols.


Marko